Bitmap to integer array?

Question

in my application i have a database where i store image .i want to retrieve images.images are easly retrieve in BitMap but the problem is how can i convert that BitMap image into integer format.

this is code:

   DataBaseClass objOfDataBaseClass=new DataBaseClass(context);
    Cursor mCursor=objOfDataBaseClass.showData();//here is all data taken from dataBase

if(mCursor.moveToNext()) {

        byte[] mg=null;
        mg = mCursor.getBlob(mCursor.getColumnIndex("image"));
        Bitmap bitmap = BitmapFactory.decodeByteArray(mg, 0, mg.length);

         int[] store=?//how can i bitMap store in this array.
}

antonio · Accepted Answer · 2016-06-15 18:55:11Z

1

You can use the Bitmap.getPixels method (documentation)

int width = bitmap.getWidth();
int height = bitmap.getHeight();
int[] store = new int[width * height];
bitmap.getPixels(store, 0, width, 0, 0, width, height);

answered Jun 15, 2016 at 18:55

antonio

18.3k4 gold badges48 silver badges62 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ridcully · Accepted Answer · 2016-06-15 19:03:22Z

1

You shouldn't store the pixels of the bitmap itself, as a bitmap contains the image in uncompressed form and that would result in a huge amount of data (e.g. 1024 x 768 x 32 bit is 3.1 MB).

Better compress the bitmap to e.g. an PNG and store that in the database. You can use Bitmap.compress() for that purpose and use a ByteArrayOutputStream to write the data to. Then, store the bytes of that outputstream to your database.

answered Jun 15, 2016 at 19:03

Ridcully

23.7k8 gold badges76 silver badges88 bronze badges

Collectives™ on Stack Overflow

Bitmap to integer array?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related